from django import http
from django.shortcuts import render
from rest_framework.response import Response
from rest_framework.views import APIView
from libs.captcha.captcha import captcha
from django_redis import get_redis_connection
from rest_framework.generics import GenericAPIView
from libs.yuntongxun.sms import CCP
import random
from rest_framework import status
from . import serializer



class ImageCodeView(APIView):
    def get(self,request,image_code_id):
        #1,生成图片验证码
        text,image_data = captcha.generate_captcha()

        #2,保存图片验证码的值
        redis_conn = get_redis_connection("code")
        redis_conn.setex("image_code_%s"%image_code_id,300,text)

        #3,返回
        response = http.HttpResponse(image_data)
        response["Content-Type"] = "image/png"
        return response

class SmsCodeView(GenericAPIView):
    serializer_class = serializer.SmsCodeSerializer
    def get(self,request,mobile):
        #1,获取参数
        dict_data = request.query_params

        #2,创建序列化器,校验
        serializer =  self.get_serializer(data=dict_data)
        serializer.is_valid(raise_exception=True)

        #判断是否频繁发送
        redis_conn = get_redis_connection("code")
        send_flag = redis_conn.get("send_flag_%s"%mobile)
        if send_flag:
            return Response({"errmsg":"频繁发送"},status=status.HTTP_400_BAD_REQUEST)
        #3,发送短信
        sms_code = "%06d"%random.randint(0,999999)
        print("sms_code = %s"%sms_code)

        from celery_tasks.sms.tasks import send_sms_code
        send_sms_code.delay(mobile, sms_code)

        # result = CCP().send_template_sms(mobile,[sms_code,5],1)
        #
        # if result == -1:
        #     return http.HttpResponseBadRequest("发送失败")

        #4,短信入库

        redis_conn.setex("sms_code_%s"%mobile,300,sms_code)
        redis_conn.setex("send_flag_%s" % mobile, 60, True)

        #5,返回响应
        return Response(status=status.HTTP_200_OK)
